Element stones are found in the creative inventory, as well as in dungeons. They can be applied to weaponry in an anvil to give those weapons elemental effects. Applying multiple to the same weapon strengthens the effect, but there is a limit to how many can be applied.
Elements will greatly increase your weapons damage against some enemies, but certain enemies may also resist them. Read more on the elements page.
These do not work in all versions, so element stones can often be useless.[Citation Needed]